DE2706795C2 - - Google Patents

Info

Publication number
DE2706795C2
DE2706795C2 DE2706795A DE2706795A DE2706795C2 DE 2706795 C2 DE2706795 C2 DE 2706795C2 DE 2706795 A DE2706795 A DE 2706795A DE 2706795 A DE2706795 A DE 2706795A DE 2706795 C2 DE2706795 C2 DE 2706795C2
Authority
DE
Germany
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE2706795A
Other languages
German (de)
Other versions
DE2706795A1 (en
Inventor
Peter Artur Wilmington Del. Us Wriede
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of DE2706795A1 publication Critical patent/DE2706795A1/en
Application granted granted Critical
Publication of DE2706795C2 publication Critical patent/DE2706795C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B48/00—Quinacridones
DE19772706795 1976-02-20 1977-02-17 METHOD OF OXIDIZING A DIHYDROCHIN ACRIDONE Granted DE2706795A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/659,932 US4025518A (en) 1976-02-20 1976-02-20 Process for preparing quinacridonequinone by oxidation of dihydroquinacridone

Publications (2)

Publication Number Publication Date
DE2706795A1 DE2706795A1 (en) 1977-09-01
DE2706795C2 true DE2706795C2 (en) 1987-03-12

Family

ID=24647430

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772706795 Granted DE2706795A1 (en) 1976-02-20 1977-02-17 METHOD OF OXIDIZING A DIHYDROCHIN ACRIDONE

Country Status (7)

Country Link
US (1) US4025518A (en)
JP (1) JPS5940169B2 (en)
CH (1) CH624975A5 (en)
DE (1) DE2706795A1 (en)
FR (1) FR2341579A1 (en)
GB (1) GB1573256A (en)
MX (1) MX146514A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52111923A (en) * 1976-03-16 1977-09-20 Toyo Soda Mfg Co Ltd Production of quinozolone derivative
DE3063338D1 (en) * 1979-08-27 1983-07-07 Du Pont PROCESS FOR PREPARING QUINACRIDONEQUINONE
DE3532343A1 (en) * 1985-09-11 1987-03-19 Hoechst Ag PIGMENTS OF THE CHINACRIDONEQUINONE RANGE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
DE3888443D1 (en) * 1987-10-27 1994-04-21 Basf Ag Process for the preparation of dihydroquinacridones, quinacridones and quinacridonequinones.
US6972333B2 (en) * 2004-01-14 2005-12-06 Sun Chemical Corporation Preparation of quinacridonequinones and substituted derivatives of same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251845A (en) * 1962-02-27 1966-05-17 Du Pont Process for oxidizing dihydroquinacridone to quinacridonequinone
US3185694A (en) * 1962-09-17 1965-05-25 Du Pont Process for preparing quinacridonequinones
US3632588A (en) * 1970-07-20 1972-01-04 Du Pont Oxidation of dihydroquinacridone

Also Published As

Publication number Publication date
GB1573256A (en) 1980-08-20
MX146514A (en) 1982-07-07
CH624975A5 (en) 1981-08-31
US4025518A (en) 1977-05-24
JPS5940169B2 (en) 1984-09-28
DE2706795A1 (en) 1977-09-01
FR2341579A1 (en) 1977-09-16
JPS52102333A (en) 1977-08-27

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: CIBA-GEIGY AG, BASEL, CH

8128 New person/name/address of the agent

Representative=s name: ZUMSTEIN SEN., F., DR. ASSMANN, E., DIPL.-CHEM. DR

8125 Change of the main classification

Ipc: C09B 48/00

D2 Grant after examination
8364 No opposition during term of opposition